Antenna for wireless telegraphy.



H.E.ATHEARN.'

ANTENNA FOR WIRELESS TBLBGRAPHY. APPLJIOATION FILED MAY 23, mos.

Patented Apr. 13, 1909.

Q k *8 w O 1 i l ,1, r 1 Moo 1 Snow 6oz. MM M4- M HEN-RY E. ATHEARN, OF BROOKLYN, NEW YORK.

ANTENNA FOR WIRELESS TE LEGRAPHY.

Specification of Letters Patent.

' M Patented. A ril 13; 1909.

Application filed May 23, 1908. Serial No. 434,617

To all whom it may concern:

Be it known that I, HENRY Erlcrnnann, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Antennae for Vireless Telegraphy; and I do hereby declare the following to be a full, clear, and exact do scription of the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to antenna for wireless telegraphy, and has for its object the production of such a device that will be etlicient in action, simple in construction, not liable to get out of order, and very sensitive in use.

To these ends my invention consists in the novel structure and combination of parts more fully hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of this specification, the figure illustrates an elevational view of my improved a'ntenna ready for use.

The supporting masts 1, are of any suitable construction, and dimensions, and are preferably two in number, although more;

may be employed if desired. These masts are provided with the pulley blocks 2, secured to ,the masts by the straps 3, and through these pulleys reeve the hoisting ropes .1-, carrying at their upper ends the insulators 5, and spreaders 6, so secured together as to form triangles with the spreaders the bases of the same, as shown. To these sprcaders are secured loops of an antenna wire 7, having the ends 8, which lead to the instruments in the operating room. This wire 7, beginning at one end 8, about midway between the two masts, passes upwardly and over to the lower spreader 6, secured to one of the-hoist ropes 4: on one of said masts, and is their secured to said spreader, as shown. It then passes upwardly and back to a point about midway between the masts, where it is s cured to another occupying spreader 9; thence upwardly and over againto another spreader 6, carried by another hoist rope l, on the said mastto which it is likewise secured; thence upward and back to the mid position between the masts where it is secured to still another spreader 9; thence back-to the mast and so on until as many loops are formed as desired. When the wire reaches the topmost spreader 6, it then individual loops of "secured to the topmost spreader 6 belonging to said other mast, and then the loops are repeated on said other mast on the way down, until the bottom spreader 6 is reached,

' when the other end of the wire is brought to a position midway between the masts, where the two ends are secured to the insulator l0,

and thence led into the operating roonn Each of the Spreaders 9, midway between the masts are also joined to the insulators 10, and in such a way as to hold the ends of the the wire opposite each other, as shown. This zigzagging of the wire back and forth between the masts, of course, may be continued to any extent desired, and may likewise be distributed between more than two masts to secure greater intercepting'power,or greater stability. In all cases, the efficiency of the apparatus will in a measure depend upon the area inclosed by the wires, and the instruments made more sensitive as this area is increased. If the wires were stretched straight across from one mast to the other, they would be apt to sag and beblown into contact with each other,

thereby varying the area inclosed by. them, andrendering the antenna as a whole less reliable than is the case when the loops are secured in the middle by the spreaders 9 and insulators 10, as shown. The hoisting ropes serve to readily raise and lower the loops for the purpose of getting them into position and for repairs.

Of course, I do not desire to be limited to the exact details of construction above disclosed, since it is evident thatthesame may be widely varied without departing from the spirit of my invention.

What I claim is i '1. In wireless telegraph antennae, the combination of suitable supports, and a plurality of wire loops extending horizontally and lying in a vertical plane between said supports, substantially as described.

2. In wireless telegraph antennae, the combination of a plurality of masts, and a single wire formed into loops extending horizontally and lying in'a vertical plane between and supported by'said masts, substantially as described.

3. In wireless'telegraph antennae, the combination of a plurality of masts; a single wire formed ,into loops extending, horizontally and lying in a vertical plane supported by said 'mastsflheends of said loops meeting crosses over to the other mast where it is between said masts; and means for securing said meeting ends together, substantially as described. 4. In wireless telegraph antennae, the combination of a plurality of masts; a sin le 1 wire formed into a plurality of loops of a length less than the distance between said masts; suitable supports for said loops on i said masts; and suitable means for joining said loops together between said masts, substantially as described.

5. In wireless telegraph antennae, the combination of a plurality of masts; and a single continuous wire formed into aiplurality of loops extending in a vertical plane and supported by said masts, substantially as de-l scribed. I

6. In wireless telegraph antennae, the combination of a plurality of masts; a single continuous wire formed into aplurality of loops extending in a vertical plane, of a length less than the distance between, and supported by said masts; and a plurality of insulators joining said loops between said masts, substantially as described.

7. In Wireless telegraph antennae, the combi-nation of a plurality of masts; a single continuous Wire formed into a plurality of loops lying in substantially a vertical plane, each loop of a length less than the distance between said masts, and provided with a spreader; a plurality of supports on said masts for said loops, and insulators for join- 1 ing the ends of opposing loops between said masts, substantially described.

8. In wireless telegraph antennae, the combination of a plurality-of masts; a single continuous wire formed into av plurality of loops lying in substantially a vertical plane,

each loop of a length less than the distance 4 ous wire adapted to be led out of and returned to the operating room and formed into oppositely disposed loops extending in a substantially vertical plane and meeting each other between said masts; insulators joining said loops at their meeting points; a spreader for each loop; and hoisting ropes passing over said' pulleys, adapted to raise and lower said loops, substantially as described. v

In testimony whereof, I aifix my signature, in presence of-two witnesses.

HENRY E. ATHEAR-N.

\Vitnesses HENRY PALMER LEWIS, ALroNso FERNANDEZ. 

